Connection between nu n -> (nu)over-bar(n)over-bar reactions and n-(n)over-bar oscillations via additional Higgs triplet bosons

In this work, we investigate the connection and compatibility between νn→νn reactions and n-n oscillations based on the SU(3)c×SU(2)L×U(1) symmetry model with additional Higgs triplets. We explore the possibility that the scattering process νn→νn produced by low-energy solar neutrinos gives rise to an unavoidable background in the measurements of n-n oscillations. We focus on two different scenarios, depending on whether the (B-L) symmetry could be broken. We analyze the interplay of the various constraints on the two processes and their observable consequences. In the scenario where both (B+L) and (B-L) could be broken, we point out that if all the requirements, mainly arising from the type-II seesaw mechanism, are satisfied, the parameter space would be severely constrained. In this case, although the masses of the Higgs triplet bosons could be within the reach of a direct detection at the LHC or future high-energy experiments, the predicted n-n oscillation times would be completely beyond the detectable regions of the present experiments. In both scenarios, the present experiments are unable to distinguish a νn→νn reaction event from an n-n oscillation event within the accessible energy range. Nevertheless, if any of the two processes is detected, there could be signal associated with new physics beyond the Standard Model.